Manhole, observation hole and measure hole are set on the wall.
炉墙上设有人孔门、观察孔和测量孔。
For the oil level gauge, observation hole and the best use of natural materials, glass or polyamide materials.
用于油位计、观察孔等的材料，好使用天然玻璃或聚酰胺材料。
Recognition of aquifer with both unite pump experiment data and long-time observation hole data in numerical model parametric recognition process gets a good effect.
在数值模型参数的识别过程中采用了联合抽水试验资料和长观孔资料对含水层参数进行识别，得到了较好的效果。
The molten observation hole needle (3) is arranged on the pipe fitting body so that a welding progress can be conveniently detected, and the welding quality can be controlled.
焊接熔观察孔针(3)设置在管件本体上，方便检测焊接进程，控制焊接质量。
But for now, GRS 1915 continues to provide useful information that researchers can apply to understanding its super-massive black hole Cousins, which can defy observation for timescale reasons.
但现在，地球观测卫星1915年继续提供有用的信息，研究人员可申请了解它的超大质量黑洞的堂兄弟，可以无视观察时间的原因。
Note: for mechanical seal, in most cases, due to evaporation from seal leakage of fluid leaking hole in observation, but sometimes a small amount and stable leakage is allowed.
注意：对于机械密封，在大多数情况下，由于汽化导致从密封泄液孔处观察不到泄漏，但有时少量而又稳定的泄漏是允许的。
System advantage is that it can amend mark point distortion, thus, accurate observation of vertical displacement can be got. Bimetal mark install veracity depends on quality of digging hole.
它的优点是能对温度所产生的标点变形进行修正，从而提高垂直位移观测精度，控制钻孔质量才能保证双金属标安装的准确性。
Open Ethan fire hole observation, coal layer surface in a furnace, appear local fire blaze, burning through phenomenon.
开启探火孔观察，炉内料层表面一片火光，出现局部冒火，烧穿现象。
From the observation of biological structure, it was found that the fiber changes its density and direction continuously when passing around a hole.
对生物结构的观测表明在孔口附近的纤维是连续绕过的，已有实验证明这种绕孔结构的强度比钻孔结构有显著提高。
By the project performance, it has introduced some methods such as geophysical prospecting, dynamic and static strain observation to study the relation between drill-hole pumping and land deformation.
论文通过工程实例，介绍了采用物探、动静态应变观测等方法综合研究钻孔抽水与地面变形之关系。
The upper side of the barrel body is provided with an observation cleaning hole; therefore, the cleaning is convenient and quick.
在筒体的上边设有观察清理孔，因而清理方便快速。
Investigation on the loudspeaker shaped gas hole morphology in tin bronze sleeves cast by centrifugal casting have been carried out by optical and scanning electron microscope observation.
在对锡青铜离心轴套铸件的喇叭形气孔形貌进行分析的基础上，归纳出喇叭形气孔的形成机理。
Objective:The observation according to rubs the sides of the small of the back group hole primarily to treat the waist strain the clinical curative effect.
目的：观察按揉腰眼组穴为主治疗腰部劳损的临床疗效。
Objective:The observation according to rubs the sides of the small of the back group hole primarily to treat the waist strain the clinical curative effect.
目的：观察按揉腰眼组穴为主治疗腰部劳损的临床疗效。
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